<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
    <script src="./observe.js">
    </script>
</head>

<body>
    <script>
        var data = {
            a: '你好',
            b: "我好"
        }
        observe(data)
    </script>
</body>

</html>